How to Save an Image to the Android Gallery with Custom Metadata?

Save Image to Gallery in Android

Saving images to the gallery in an Android app can be achieved through the MediaStore class. Utilize the following method within an onOptionsItemSelected listener:

<code class="java">MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, title, description);</code>

Where bitmap is your image, title and description are optional metadata. This method adds the image to the end of the gallery.

Customizing Image Metadata

If you wish to modify the image's date or other metadata for proper placement in the gallery:

<code class="java">// Import the necessary libraries
import android.provider.MediaStore;
import android.graphics.Bitmap;

// New method to insert image with customized metadata
public static String insertImageWithMetadata(ContentResolver cr, Bitmap source, String title, String description, long timestamp) {
    ContentValues values = new ContentValues();
    values.put(MediaStore.Images.Media.TITLE, title);
    values.put(MediaStore.Images.Media.DISPLAY_NAME, title);
    values.put(MediaStore.Images.Media.DESCRIPTION, description);
    values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
    values.put(MediaStore.Images.Media.DATE_ADDED, timestamp);
    values.put(MediaStore.Images.Media.DATE_TAKEN, timestamp);

    Uri uri = null;
    String stringUrl = null;

    try {
        uri = cr.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);

        if (source != null) {
            OutputStream imageOut = cr.openOutputStream(uri);
            source.compress(Bitmap.CompressFormat.JPEG, 50, imageOut);
            imageOut.close();
        } else {
            cr.delete(uri, null, null);
            uri = null;
        }
    } catch (Exception e) {
        if (uri != null) {
            cr.delete(uri, null, null);
            uri = null;
        }
    }

    if (uri != null) {
        stringUrl = uri.toString();
    }

    return stringUrl;
}</code>

This method includes additional parameters for customized DATE_ADDED and DATE_TAKEN values, allowing you to control the image's position in the gallery. The timestamp parameter represents the date and time in milliseconds.

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